Valve.



C. A. HARVEY.

VALVE.

APPLICATION FILED 00T.12, 1908.

927,794. Patented July 13, 1909.

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UNITED STATES PATENT OFFICE.

CHARLES A. HARVEY, OF CHICAGO, ILLINOIS, ASSICNOR TO PRODUCER CAS UTILITIES COMPANY, A CORPORATION OI? ILLINOIS.

VALVE To all whom it may concern:

Be it known that I, CnAnLEs A. HARVEY, a citizen of the United States, residing at Chicago, in the county ol'l Cook and State ol Illinois, have invented a new and usel'ul Improvement in Valves, of which the l'ollowing is a specification.

My invention relates to certain new and useful improvements in valves and is fully described and explained in the speei'lication and shown in the accompanying drawing, which is a longitudinal section through my improved valve.

My improved valve is particularly designed for use in connection with gas producers, its object being primarily to provide a sim le and e'l'lieient, as well as thoroughly sate evice, by which the hot gas coming from the producer can be sent to the scrubber for subsequent treatment or at will to the night-stack where it will be dissipated.

Referring to the drawing, A is the intakepipe of a valve through which the hot gas issues from the producer' and this gas enters a T-Iitting B having two horizontal arms, the lower portion oi' the T-itting being arched upward at l) to provide a medial dividing line from which water will tend to 'llow in both directions.

C is a water intake-pipe through which the overflow water from the scrubber enters the fitting B llowing thence in both directions l'rom the divide.

To the right-hand side of the fitting B is aT-tting D, through which extends a vertical pipe E, the upper end of which communicates with an exhaust-pipe I" leading to the night-stack, and the lower end of which is considerably below the upper limit of the divide b. The up er end of the pipe E fits the upper end of t ie T-'fitting D tightly, by means of a suitable bushing so that the whole may be removed for cleaning if necessary, so as not to permit the egress ol gas around the pipe at the upper end. The lower end ol the pipe E is surrounded by a considerable space so that the gas can ass downward through the T-itting D an( the pipes be-- neath the same and upward through the pi e E.

eneath the fitting D and connected therewith by a ipe d is a tee Cr closed at its lower end by a c eaning-plug g and connected by a pipe h with a three-way cock I, the lower end of which opens into a drain-pipe J.

Specification of Letters Patent.

Application filed October 12, 1908.

Patented July 13, 1909.

Serial N0. 457,306.

To the left-hand side of the T-iitting Il corresponding parts are arranged, that is to say, a T-'litting D1 connected by a pipe d1 with a tee G1 closed at its lower end by`a plug g1, the tee being in turn connected to the opposite side of a three-way cock I by means of a pipe h1. A pipe E1 is mounted within the T-iitting D1 and extends donunvard exactly as does the pipe E and the upper end el said pipe E1 communicates with a pipe F1 which in practice runs to the scrubber.

From the above description el the construction the operation of the valve will be readily apparent. With the parts in the position shown in the drawing, the water entering through the pipe C will be divided into substantially equal portions and will vllow in both directions through the T-littings D, D1 and down into the tees G, G1. The water on the right-hand side will meet the closed portion of the three-way cock and will be held back l'roni the drain-pipe thereby and will thus lill up the tee G, the pipe (l and the T- Iitting D to the level of the divide b in the T-Iitting B, and thereafter all the water entering through the pipe C will pass out to the lelt following a similar course to the threeway cock I which, however, will be open to the passage of water from the left-hand side so that the water will llow down the drain. This will leave a lree and unobstructed passage lor gas in the direction shown by the arrows; that is the gas will enter the T-'litting D1, pass down through the pipe (Z1, up through the pipe E1 and through the exhaust-pipe F1 where it will enter the scrubber and be treated in the usual way. TWhen it is desired to turn the gas into the night-stack the three-way cock I is turned 1S()o so as to connect the pipe 7L with the pipe J and to obstruct the passage from the pipe h1. The result ol this shil't will be an immediate emptying of the iitting D, the pipe d and the tee G down to the level ol the intake to the three-way cock I, so as te leave a passage for gas to the exhaust F and the night-stack, and the water will immediately begin to back up in the tee G1 ultimately sealing the lower end of the pipe E1 and preventing the egress of gas to the scrubber.

It will be readily understood that while the valve of my invention has been described particularly for use in connection with producers, lor which use it was especially designed, it may (ind utility in other arts where gas is to be handled. The construction is particularly desirable for hot gases because the side through which the gas is passing is cooled by the inilowing water constantlyv while the abutting surface which stops the movement of the gas in the opposite direction is also of water and not liable therefore to injury. It will be evident also7 that for reasons of convenience it is desirable to use the valve only in connection with gases nnder comparatively slight pressure, unless the pipes are made sulliciently large to take care of any .flow of gas and unless also, the pressure in the two points to which the gas may be led is substantially equal. rlhe pressure which must be overcome by the gas to Vilow in the wrong direction is merely that of the head of water from the divide Z) down to the lower end of the pipe E and by varying this distance the capacity orp the valve for han- (lling` high pressures can be increased within limits, but the length might have to be inconveniently great to withstand a high pressure. The valve is, however, especially advantageous for handling hot gases -under comparatively low pressure and in operation it is satisfactory and simple.

l realizer that considerable variation is possible in the details of construction of my improved device, without departing from the spirit of my invention, and l do not intend therefore, to limit myself to the specilic form herein shown and described.

l claim as new and desire to secure by' Letters Patent* 1. The combination with an intake-pipe and two exhaust-pipes, of' traps interposed between the intake-pipe and each exhaust pipe, and a single device for at will 'flooding one trap with water and simultaneously discharging the other trap.

2. The combination with an intake-pipe and two exhaust-pipes, of two traps interposed between the exhaust-pipes and the intake-pipe, means for introducing water in position to flow into both traps, means for drawingI oll" water from the lower portion of each trap and means tor at will closing said means in one trap and opening; it in the other.

3. The combination with an intake-pipe and two exhaust-pipes of traps interposed between the intale-pipe and the exhaust-pipes, means for drawing oil liquid from the lower part oi each trap, a three-way cock controlling said means whereby the liquid-exit from one trap may be closed and the other simultaneously opened rand means for introducingq water to ilow in such directions as to normally ilood both traps.. n

4. The combination with a T-itting of an intake-pipe entering the same, means for introducingl water to the T-iitting and a waterdivide in the T-iitting; for shedding water in both directions therefrom, exhaust-pipes, traps interposed between the T-iitting1 and the exhaust-pipes and means 'for at will drawingI oil the water 'from either trap.

5. The combination with aT-'litting an intake-pipe opening therein, and a water-pipe also opening therein oiC vertical members on the two sides of tlie'i"ttiiig and having` coinmunication therewith, pipes leadingfrom` the tops of said vertical members and eX- tended downward within the same to form traps therein, means for drawing' oil liquid from the lower portions of said vertical pipes, and a three-way cock' controlling` said drawing oil.

CHARLES A. Hi'tVEY. i ln presence ol:-

CHAs. E. GAYLonD, RALPH A. SCHARFE. 

